All categories

3 years ago

Please help me out! And please show your work!! | | | v

Mathematics

2 answers:

Sedaia [141]3 years ago

6 0

8/20 is your answer buddy

nalin [4]3 years ago

4 0

Answer:

Ratio of perimeters = 5:2

Ratio of areas: 25:4

Step-by-step explanation:

20/8 = 5/2 (ratio of lengths is equal to ratio of perimeters)

$(5/4) ^{2}$ = 25/4 (ratio of areas is the square of ratio of lengths)

You might be interested in

PLEASE HELP NOBODY WILL HELP ME I WILL GIVE BRAINLIEST

d1i1m1o1n [39]

Answer:

See below

Step-by-step explanation:

Let the number of Payday be p and Baby Ruth be b

Then sub of the candy bars:

p + b = 220

Payday candy bars worth ⇒ $2p
Baby Ruth candy bars worth ⇒ $3b
Total ⇒ $600

1. Required equations:

p + b = 220
2p + 3b = 600

2. Solving by substitution:

p = 220 - b, consider it in the second equation

2(220 - b) + 3b = 600
660 - 2b + 3b = 600
660 + b = 600
b = 660 - 600
b = 60

60 Baby Ruth candy bars sold

4 0

2 years ago

10 cm What’s the answer?

KIM [24]

Answer:

if im correct it should be 40

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Let u = (1, 2 -2), v= (2, 1, 3) and w = j + 4k. a) Find cos theta, where theta is the angle in degrees between u and w.

vodka [1.7K]

Answer: The value of cos theta is -0.352.

Step-by-step explanation:

Since we have given that

$\vec{u}=1\hat{i}+2\hat{j}-2\hat{k}\and\\\\\vec{w}=\hat{j}+4\hat{k}$

We need to find the cos theta between u and w.

As we know the formula for angle between two vectors.

$\cos\ \theta=\dfrac{\vec{u}.\vec{w}}{\mid u\mid \mid w\mid}$

So, it becomes,

$\cos \theta=\dfrac{2-8}{\sqrt{1^2+2^2+(-2)^2}\sqrt{1^2+4^2}}\\\\\cos \theta=\dfrac{-6}{\sqrt{17}\sqrt{17}}=\dfrac{-6}{17}=-0.352\\\\\theta=\cos^{-1}(\dfrac{-6}{17})=110.66^\circ$

Hence, the value of cos theta is -0.352.

8 0

3 years ago

Solve for t: F =2t+k/3g

pashok25 [27]

Answer:

$F = \frac{2t + k}{3g} \\3Fg = 2t+k\\3Fg - k = 2t\\t = \frac{3Fg - k}{2}$

5 0

3 years ago

Please help me lol aaaaa

miss Akunina [59]

Answer:

−0.125 or - 1/8

Step-by-step explanation:

8 0

3 years ago